linux-toradex.git/drivers/scsi/aacraid/aacraid.h, branch v4.4.60

aacraid: Fix for KDUMP driver hang

2016-06-08T01:14:34+00:00

commit 78cbccd3bd683c295a44af8050797dc4a41376ff upstream.

When KDUMP is triggered the driver first talks to the firmware in INTX
mode, but the adapter firmware is still in MSIX mode. Therefore the first
driver command hangs since the driver is waiting for an INTX response and
firmware gives a MSIX response. If when the OS is installed on a RAID
drive created by the adapter KDUMP will hang since the driver does not
receive a response in sync mode.

Fixed by: Change the firmware to INTX mode if it is in MSIX mode before
sending the first sync command.

Signed-off-by: Raghava Aditya Renukunta 
Reviewed-by: Johannes Thumshirn 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Greg Kroah-Hartman

aacraid: Fix RRQ overload

2016-04-12T16:08:38+00:00

commit 3f4ce057d51a9c0ed9b01ba693df685d230ffcae upstream.

The driver utilizes an array of atomic variables to keep track of IO
submissions to each vector. To submit an IO multiple threads iterate
through the array to find a vector which has empty slots to send an
IO. The reading and updating of the variable is not atomic, causing race
conditions when a thread uses a full vector to submit an IO.

Fixed by mapping each FIB to a vector, the submission path then uses
said vector to submit IO thereby removing the possibly of a race
condition.The vector assignment is started from 1 since vector 0 is
reserved for the use of AIF management FIBS.If the number of MSIx
vectors is 1 (MSI or INTx mode) then all the fibs are allocated to
vector 0.

Fixes: 495c0217 "aacraid: MSI-x support"
Signed-off-by: Raghava Aditya Renukunta 
Reviewed-by: Johannes Thumshirn 
Reviewed-by: Tomas Henzl 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Greg Kroah-Hartman

aacraid: Update driver version

2015-11-10T00:12:56+00:00

Reviewed-by: Tomas Henzl 
Reviewed-by: Murthy Bhat 
Reviewed-by: Karthikeya Sunkesula 
Signed-off-by: Mahesh Rajashekhara 
Signed-off-by: James Bottomley

aacraid: Use pci_enable_msix_range()

2015-11-10T00:12:13+00:00

As pci_enable_msix() deprecated, replaced with pci_enable_msix_range()

Reviewed-by: Tomas Henzl 
Reviewed-by: Murthy Bhat 
Reviewed-by: Karthikeya Sunkesula 
Signed-off-by: Mahesh Rajashekhara 
Signed-off-by: James Bottomley

aacraid: Reset irq affinity hints

2015-11-10T00:06:38+00:00

Reset irq affinity hints before releasing IRQ.
Removed duplicate code of IRQ acquire/release.

Reviewed-by: Tomas Henzl 
Reviewed-by: Murthy Bhat 
Reviewed-by: Karthikeya Sunkesula 
Signed-off-by: Mahesh Rajashekhara 
Signed-off-by: James Bottomley

aacraid: Enable 64bit write to controller register

2015-11-10T00:01:29+00:00

If writeq() not supported, then do atomic two 32bit write

Reviewed-by: Tomas Henzl 
Reviewed-by: Murthy Bhat 
Reviewed-by: Karthikeya Sunkesula 
Signed-off-by: Mahesh Rajashekhara 
Signed-off-by: James Bottomley

aacraid: Add Power Management support

2015-11-09T23:59:18+00:00

* .suspend() and .resume() routines implemented in the driver
* aac_release_resources() initiates firmware shutdown
* aac_acquire_resources re-initializes the host interface

Reviewed-by: Tomas Henzl 
Reviewed-by: Murthy Bhat 
Reviewed-by: Karthikeya Sunkesula 
Signed-off-by: Mahesh Rajashekhara 
Signed-off-by: James Bottomley

aacraid: driver version change

2015-04-09T23:57:01+00:00

Signed-off-by: Mahesh Rajashekhara 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Murthy Bhat 
Signed-off-by: James Bottomley

aacraid: AIF raw device remove support

2015-04-09T23:56:18+00:00

Signed-off-by: Mahesh Rajashekhara 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Murthy Bhat 
Signed-off-by: James Bottomley

aacraid: performance improvement changes

2015-04-09T23:55:21+00:00

Signed-off-by: Mahesh Rajashekhara 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Murthy Bhat 
Signed-off-by: James Bottomley